That's a cute idea! Super glue those glass rocks you can buy from the Dollar Tree onto a flat surfaced picture frame, add embellishments. *** make the photo things with the rocks and then glue those to picture frames or letter shapes.
12 Clever Ways to Repurpose Dollar Store Picture Frames - Page 13 of 13
DIY Frames for Wall Decor: Turn the simple frames from the local thrift store into these expensive frames by attaching wood to all sides and hang on wall. Low budget with high impact DIY project for your home decor!